论文标题
用断裂的对称性倾斜的Weyl半学中的Landau量化
Landau quantization in tilted Weyl semimetals with broken symmetry
论文作者
论文摘要
断裂的对称和倾斜效应在Weyl半法（WSM）中无处不在。因此，了解它们对材料的电子和光学特性的影响至关重要。在这里，我们使用既包含对称性断裂和倾斜效应的WSM的现实四波段模型，研究其Landau量化和相关的磁吸附光谱。我们表明，可以通过考虑通过Lorentz Boost考虑非倾斜的哈密顿量来获得倾斜的Weyl带中的Landau水平。但是，断裂的对称效应可以在哈密顿量中产生一个额外的术语，这等效地导致带重建。我们的工作对WSM的磁场响应提供了更现实的看法，这些磁场响应应在相关的将来的设备应用中考虑到。
Broken symmetry and tilting effects are ubiquitous in Weyl semimetals (WSMs). Therefore, it is crucial to understand their impacts on the materials' electronic and optical properties. Here, using a realistic four-band model for WSMs that incorporates both the symmetry breaking and tilting effects, we study its Landau quantization and the associated magneto-absorption spectrum. We show that the Landau levels in tilted Weyl bands can be obtained by considering a non-tilt Hamiltonian through Lorentz boost. However, broken symmetry effects can generate an additional term in the Hamiltonian, which equivalently leads to band reconstruction. Our work provides a more realistic view of the magnetic field response of WSMs that shall be taken into account in relevant future device applications.
